OptoTech has obtained patents related to scratch detection devices. The scratch defect detection device can accurately detect scratches on highly reflective parts.

On April 3, according to information from the China National Intellectual Property Administration, Guangdong Optech Technology Co., Ltd. has filed a patent titled “A Scratch Defect Detection Device.” The authorized announcement number is CN224066645U, and the authorized announcement date is March 31, 2026. The application number is CN202520594102.4. The application publication date is March 31, 2026, the application date is March 31, 2025. The inventors are Chen Jiangnan, Xiao Qi, Zhang Tengfei, and Li Jiangfeng. The patent agent is Beijing Xin Hao Lian De Patent Agency (General Partnership), and the patent agent is Yang Qingqing. Classification numbers are G01N21/88 and G01N21/01.

The patent abstract shows that this utility model relates to the field of machine vision inspection technology. It discloses a scratch defect detection device, which includes a cross-line scanning light source. The cross-line scanning light source includes a first light-emitting component, a second light-emitting component, and a third light-emitting component. The first, second, and third light-emitting components emit light on the same side. The second and third light-emitting components are located on two sides opposite to the first light-emitting component. The first light-emitting component includes a first circuit board and first light-emitting diodes arranged in an array on the first circuit board, and the optical axes of the first light-emitting diodes are perpendicular to the first circuit board. The optical axis of the second light-emitting diode in the second light-emitting component is offset relative to the optical axis of the first light-emitting diode, and the optical axis of the third light-emitting diode in the third light-emitting component is offset relative to the optical axis of the first light-emitting diode. This utility model’s scratch defect detection device can accurately detect scratch defects on the surface of highly reflective workpieces.

Optech was established on March 24, 2006, and was listed on the Shanghai Stock Exchange on December 31, 2020. Its registered address and office address are both in Dongguan City, Guangdong Province. It is a leading enterprise in the domestic machine vision industry, and its core products are machine vision software and hardware, with strong technical R&D capabilities.

Optech mainly engages in the R&D, production, and sales of core machine vision software and hardware products. The Shenwan industry it belongs to is Mechanical Equipment - Automation Equipment - Other Automation Equipment, and it is part of the STAR Market market-making stocks and the concept sector for neural networks and machine vision.

In 2025, Optech achieved operating revenue of RMB 1.27B, ranking No. 2 among five companies in the industry. The industry leader, Beizhi Technology, had RMB 2.11B. The industry average was RMB 996 million, and the median was RMB 950 million. In its main business, machine vision revenue was RMB 960 million, accounting for 75.66%; machine vision accessories were RMB 173 million, accounting for 13.66%; motion control products were RMB 135 million, accounting for 10.64%; other (supplement) RMB 615.4k, accounting for 0.05%. Regarding net profit, in 2025 Optech achieved RMB 192 million, ranking first among the five companies in the industry. The second-place company Beizhi Technology had RMB 172 million; the industry average was RMB 26.9336 million; and the median was RMB 112 million.

The recent patent situation of Guangdong Optech Technology Co., Ltd. is as follows:

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